Pcos syndrome

does anyone have pcos on here and fallen pregnant ? 
Can anyone explain pcos.... I've gotten so many different explanations on it I'm so confused....
My ex and me have had one miscarriage at 7-8 weeks from hormones dropping and I stuffed up and saw him again and they told me as the test came up negative I have to do another in 4 weeks....
And my ex is walking away again he is 36 and I'm 22 and now I'm scared I'll be doing it alone again 💔😭